Electronic atomizer

Abstract

The utility model relates to an electronic atomizer, and relates to the technical field of electronic atomizers. The electronic atomizer comprises an atomization circuit, the atomization circuit comprises a switch assembly and an energy conversion part which are connected in series, the switch assembly is used for controlling the working mode of the energy conversion part, and the energy conversion part is arranged to conduct atomization treatment on an aerosol generating substrate in the atomization mode; wherein the switch assembly comprises at least two first switch devices which are connected in parallel, and the at least two first switch devices are arranged to adjust the voltage at the two ends of the switch assembly through conduction, so that the voltage at the two ends of the energy conversion piece is larger than or equal to the target voltage in the atomization mode. According to the electronic atomizer, the problem of voltage drop of the atomization circuit caused by the single first switching device is solved through the at least two first switching devices connected in parallel, the voltage at the two ends of the energy conversion piece is improved, and the atomization efficiency of the electronic atomizer is further improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic atomizers, and particularly relates to an electronic atomizer. BACKGROUND

[0002] An electronic atomizer is a device that can heat a target liquid to atomization to form an aerosol. It has the advantages of convenient carrying and convenient use.

[0003] Among them, the output current of a high-power electronic atomizer is often large, and a pressure drop is easily formed, which leads to a decrease in the voltage across the atomization device, and further leads to low atomization efficiency. CONTENT OF THE UTILITY MODEL

[0004] The present application provides an electronic atomizer, which comprises an atomization circuit, the atomization circuit comprises a switching assembly and an energy conversion piece in series, the switching assembly is used for controlling the working mode of the energy conversion piece, and the energy conversion piece is arranged to perform atomization treatment on an aerosol generating substrate in an atomization mode; wherein the switching assembly comprises at least two first switch devices in parallel, and the at least two first switch devices are arranged to adjust the voltage across the switching assembly by conduction, so that the voltage across the energy conversion piece is greater than or equal to a target voltage in the atomization mode.

[0005] In some embodiments, the atomization circuit further comprises a control module, the control module is electrically connected with the control end of the switching assembly, and is used for controlling the at least two first switch devices to conduct simultaneously.

[0006] In some embodiments, the switching assembly further comprises a pull-up resistor and a second switch device, one end of the second switch device is electrically connected with the control end of the first switch device and one end of the pull-up resistor, the other end of the second switch device is grounded, the control end of the second switch device is electrically connected with the control module, the other end of the pull-up resistor is electrically connected with one end of the first switch device, and the other end of the first switch device is electrically connected with the energy conversion piece.

[0007] In some embodiments, the first switch device is arranged to conduct at the control end inputting a low level, and the second switch device is arranged to conduct at the control end inputting a high level.

[0008] In some embodiments, the first switch device is a P-channel field effect transistor or a P-channel enhancement mode field effect transistor, and the second switch device is a digital triode.

[0009] In some embodiments, the energy conversion component is configured to preheat the aerosol generating substrate in a preheating mode, and the atomization circuit further comprises a temperature control resistor connected in parallel with the switch assembly and in series with the energy conversion component, the temperature control resistor being configured to adjust the energy conversion component to work in the preheating mode when the switch assembly is turned off.

[0010] In some embodiments, the atomization circuit further comprises a voltage feedback circuit having an input end and a feedback end, the input end of the voltage feedback circuit being electrically connected between the switch assembly and the energy conversion component.

[0011] In some embodiments, the voltage feedback circuit comprises a first voltage dividing resistor and a second voltage dividing resistor, one end of the first voltage dividing resistor being electrically connected between the switch assembly and the energy conversion component, and the other end being electrically connected with the feedback end, one end of the second voltage dividing resistor being grounded, and the other end being electrically connected with the feedback end.

[0012] In some embodiments, the atomization circuit further comprises a gas sensor for detecting gas pressure or gas flow and generating a change signal, and at least two of the first switch devices are turned on in response to the change signal.

[0013] In some embodiments, the energy conversion component comprises a heating resistor, or the energy conversion component is configured to atomize the aerosol generating substrate by ultrasonic waves.

[0014] The application has the following beneficial effects: the application uses at least two parallel first switch devices to improve the voltage drop problem caused by a single first switch device to the atomization circuit, to increase the voltage across the energy conversion component, and to further improve the atomization efficiency of the electronic atomizer. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative effort.

[0016] Figure 1 A schematic diagram of the frame of the electronic atomizer in some embodiments of the application;

[0017] Figure 2 A schematic diagram of the frame of the electronic atomizer in some embodiments of the application; Figure 1 A partial circuit schematic diagram of the atomization circuit in some embodiments of the illustrated embodiments;

[0018] Figure 3 A partial circuit schematic diagram of the atomization circuit in some embodiments of the illustrated embodiments; Figure 1Frame diagram of the atomization circuit in some embodiments of the illustrated embodiment;

[0019] Figure 4 For Figure 3 Partial circuit diagram of the atomization circuit in some embodiments of the illustrated embodiment;

[0020] Figure 5 For Figure 1 Frame diagram of the atomization circuit in some embodiments of the illustrated embodiment;

[0021] Figure 6 For Figure 1 Frame diagram of the atomization circuit in some embodiments of the illustrated embodiment;

[0022] Figure 7 For Figure 1 Partial circuit diagram of the atomization circuit in some embodiments of the illustrated embodiment;

[0023] Figure 8 For Figure 1 Frame diagram of the atomization circuit in some embodiments of the illustrated embodiment;

[0024] Figure 9 For Figure 1 Partial circuit diagram of the atomization circuit in some embodiments of the illustrated embodiment;

[0025] Figure 10 For Figure 1 Partial circuit diagram of the atomization circuit in some embodiments of the illustrated embodiment;

[0026] 10, switch assembly; 11, first switch device; 20, energy conversion piece; 30, control module; 40, sensor; 50, voltage feedback circuit; 60, temperature control resistor; 101, atomization circuit; 100, electronic atomizer. DETAILED DESCRIPTION

[0027] The present application will be further described by way of illustration with reference to the following drawings and embodiments. It is specifically noted that the following embodiments are merely illustrative of the present application and are not intended to limit the scope of the present application. Similarly, the following embodiments are only some of the embodiments of the present application and all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of the present application.

[0028] Reference to "embodiments" in this application means that the particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. It is explicitly and implicitly understood that the embodiments described in the present application can be combined with other embodiments.

[0029] In addition, the technical solutions among various embodiments can be combined with each other, but it must be based on that a person skilled in the art can realize, when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

[0030] The present application describes an electronic atomizer, which can be used for atomizing an aerosol generating substrate by an energy conversion element. The aerosol generating substrate is a material for generating an aerosol. It can generally consist of at least one chemical substance capable of generating an aerosol, such as a flavorant, a drug or other active ingredients. The aerosol generating substrate can be activated by the energy conversion element through heating or other means, thereby releasing an aerosol for various applications, such as medical, cosmetic, cleaning, etc.

[0031] In some embodiments, the aerosol generating substrate can be water or at least include water.

[0032] Researchers have found that in an electronic atomizer, the atomization circuit can be composed of at least two electronic components, and due to the presence of resistance, a potential difference will be generated across the electronic components when the current passes through the electronic components, thereby causing a decrease in voltage, i.e. voltage drop. In the atomization circuit with voltage drop, the atomization effect of the energy conversion element is often poor due to the voltage drop of other electronic components, which can affect the release rate of the aerosol generating substrate, odor (when the aerosol generating substrate has odor), etc.

[0033] Currently, electronic components with low resistance are used to improve the voltage drop of the atomization circuit, but it is difficult to popularize due to the high cost of electronic components with low resistance, and in addition, it is also difficult to select the appropriate one due to the single resistance value of the electronic components.

[0034] Furthermore, researchers have found that the device switch will also affect the release rate of the aerosol generating substrate, odor, etc. due to resistance.

[0035] Furthermore, the present application takes the example of improving the atomization efficiency, odor (odor can be determined by aerosol concentration, and atomization efficiency directly affects aerosol concentration) of the electronic atomizer by the device switch, and introduces it.

[0036] Please refer to Figure 1 , Figure 1Fig. 1 is a schematic diagram of a frame of an electronic atomizer in some embodiments of the present application. The electronic atomizer 100 can include an atomization circuit 101. It can be understood that the electronic atomizer 100 can also include other structures such as a housing and the like, and is not limited to the embodiments listed herein. The electronic atomizer 100 can carry other structures in the electronic atomizer 100 through a housing and the like, and can be held by a user for use, or can hold an aerosol generating substrate through a housing and the like. The specific structure and composition of the electronic atomizer 100 are not described in detail herein.

[0037] The atomization circuit 101 can include a switching assembly 10 and an energy conversion piece 20 connected in series. Of course, the atomization circuit 101 can also include a power supply to supply power to the energy conversion piece 20. The series connection of the switching assembly 10 and the energy conversion piece 20 can make at least part of the atomization circuit 101 form a loop through the switching assembly 10 and the energy conversion piece 20, in which the working mode of the energy conversion piece 20 can be controlled by the switching assembly 10.

[0038] The electronic atomizer 100 can have an atomization mode, a preheating mode, a sleep mode, and other modes, which are not described in detail. In some scenarios, the electronic atomizer 100 is in the atomization mode, the energy conversion piece 20 works normally and atomizes the aerosol generating substrate. In some scenarios, the electronic atomizer 100 is in the preheating mode, the energy conversion piece 20 only heats the aerosol generating substrate, but does not atomize the aerosol generating substrate. In some scenarios, the electronic atomizer 100 is in the sleep mode, the energy conversion piece 20 does not work, that is, the energy conversion piece 20 does not heat the aerosol generating substrate or atomize the aerosol generating substrate.

[0039] In some embodiments, the switching assembly 10 can have a function of switching the electronic atomizer 100 between the atomization mode and the preheating mode.

[0040] The energy conversion piece 20 can atomize the aerosol generating substrate in the atomization mode. The series connection of the switching assembly 10 and the energy conversion piece 20 can make the switching assembly 10 control the energy conversion piece 20 to work in the atomization mode.

[0041] The switching assembly 10 can include at least two first switching devices 11 connected in parallel, so that the loop in which the switching assembly 10 and the energy conversion piece 20 are located can be controlled by the first switching devices 11. For example, the disconnection of at least two first switching devices 11 (i.e. the control loop is disconnected, all first switching devices 11 in the loop are disconnected) can make the loop in which the switching assembly 10 and the energy conversion piece 20 are located disconnected, and the conduction of at least one first switching device 11 can make the loop in which the switching assembly 10 and the energy conversion piece 20 are located conductive.

[0042] At least two first switch devices 11 can be in conduction to make the circuit in which the switching assembly 10 and the energy conversion piece 20 are located conductive, and at the same time, the parallel connection of the at least two first switch devices 11 can be realized, so that the resistance value of the at least two first switch devices 11 in parallel connection as a whole is smaller than the resistance value of any one first switch device 11, and then the voltage across the switching assembly 10 can be adjusted. In the circuit in which the switching assembly 10 and the energy conversion piece 20 are located, the decrease of the voltage across the switching assembly 10 will inevitably cause the increase of the voltage across the energy conversion piece 20, and then the voltage across the energy conversion piece 20 in the atomization mode can be greater than or equal to the target voltage.

[0043] In some embodiments, the target voltage can be determined as 3.7-3.9V, for example, the target voltage can be determined as 3.8V. It can be understood that the target voltage can not be limited by the embodiments listed herein, but can also be determined according to the technical solutions well known in the art.

[0044] The present application can improve the voltage drop across the switching assembly 10 through the parallel connection of the at least two first switch devices 11, thereby improving the atomization efficiency of the electronic atomizer 100, and then improving the release rate, odor, etc. of the aerosol generating substrate.

[0045] In some embodiments, the first switch device 11 can be a current-limiting switch, a triode, a general electrically controlled switch, or a relay switch, etc. electronic components with the function of controlling the on-off of the circuit, and specifically, the type selection can be made by the person skilled in the art according to the needs.

[0046] In some embodiments, the energy conversion piece 20 can include a heating resistor to heat by the heating resistor to realize the heating and atomization of the aerosol generating substrate.

[0047] In some embodiments, the energy conversion piece 20 can be an electronic component using the principle of ultrasonic atomization (a technology of atomizing liquid into small molecular gas mist by using ultrasonic wave energy), so that the aerosol generating substrate can be atomized by using ultrasonic waves.

[0048] Please refer to Figure 2 , Figure 2 for Figure 1 the partial circuit schematic diagram of the atomization circuit 101 in some embodiments. The switching assembly 10 can include three first switch devices 11 in parallel connection, for example, the switch device Q1, the switch device Q2 and the switch device Q3, and of course, the number of the first switch devices 11 can be determined according to the target voltage, and can not be limited by the embodiments listed herein.

[0049] One end of each first switching device 11 in the switching assembly 10 can be electrically connected to the high voltage end Vbat of the power supply, and the other end can be electrically connected to the end point Vout. The end point Vout is electrically connected to one end of the energy conversion component 20, and the other end of the energy conversion component 20 is electrically connected to the ground of the power supply. Further, the switching assembly 10, the power supply, and the energy conversion component 20 can form a loop to control the working mode of the energy conversion component 20 through the switching assembly 10.

[0050] In some scenarios, the rated voltage of the power supply is 4.2V, the electronic atomizer 100 requires a target voltage of 3.8V, and the resistance of the energy conversion component 20 is 0.5Ω. Then the output power of the energy conversion component 20 is P = (3.8V*3.8V) / 0.5Ω = 28.88W, and the loop current I = P / U = 28.88W / 3.8V = 7.6A through calculation. Usually, the internal resistance of a conventional first switching device 11 such as the switching device Q1, the switching device Q2, and the switching device Q3 is 20mΩ, and the voltage drop of the power supply cell of the electronic atomizer 100 is 0.3V (for the convenience of calculation and display, it is assumed that the voltage drop of the power supply cell is a constant value).

[0051] When the switching assembly 10 uses one first switching device 11 such as the switching device Q1, the voltage drop U1 of the switching assembly 10 is calculated as 3.9V / 0.52Ω*0.02Ω = 0.15V. Then the maximum output value U of the electronic atomizer 100 when the power supply cell is fully charged is 4.2V-0.3V-0.15V = 3.75V, which is less than the target voltage and cannot meet the requirements of the electronic atomizer 100.

[0052] When the switching assembly 10 uses two first switching devices 11 such as the switching device Q1 and the switching device Q2 in parallel, the voltage drop U2 of the two first switching devices 11 is calculated as 3.9V / 0.51Ω*0.01Ω = 0.0765V. The maximum output value U of the electronic atomizer 100 when the power supply cell is fully charged is 3.9V-0.0765V = 3.8235V, which is greater than the target voltage and meets the output requirements of the electronic atomizer 100. Further, the definition "at least two" in the present application can be interpreted as greater than or equal to 2.

[0053] When the switching assembly 10 uses three first switching devices 11 such as the switching device Q1, the switching device Q2, and the switching device Q3 in parallel, the voltage drop U3 of the three first switching devices 11 is calculated as 3.9V / 0.506Ω*0.006Ω = 0.0462V. The maximum output value U of the electronic atomizer 100 when the power supply cell is fully charged is 4.2V-0.3V-0.0462V = 3.8538V, which is greater than the target voltage and meets the output requirements of the electronic atomizer 100.

[0054] The above scenario is only used to explain that at least two first switching devices 11 are connected in parallel to improve the voltage drop and improve the atomization efficiency of the electronic atomizer 100, improve the release rate of the aerosol generating substrate, the smell, etc., and is not used to limit the present application.

[0055] And as can be seen from the above scenario, the number of first switching devices 11 can be 2, or even 3, of course, the number of first switching devices 11 can also be greater than 3, for example, 4, 5, and so on.

[0056] Please refer to Figure 3 , Figure 3 As Figure 1 shown in the frame diagram of the atomization circuit 101 in some embodiments. The atomization circuit 101 can also include a control module 30, which can be electrically connected to the control end of the switch assembly 10 to control the simultaneous conduction of at least two first switching devices 11, thereby adjusting the voltage across the switch assembly 10.

[0057] In some embodiments, the control module 30 can be a micro processing unit, which can be a single chip microcomputer, or other control chips, which can be selected or set according to the scheme well known in the art.

[0058] In some embodiments, the control module 30 can be electrically connected to the control end of at least two first switching devices 11, thereby controlling the first switching devices 11 respectively.

[0059] Please refer to Figure 2 , the first switching device 11, such as switching device Q1, switching device Q2 and switching device Q3, can have a control end Link to be electrically connected to the control module 30, thereby realizing the conduction and disconnection of the first switching device 11, such as switching device Q1, switching device Q2 and switching device Q3, under the control of the control module 30. In some embodiments, the first switching device 11 can be a triode. In some embodiments, the first switching device 11 can be a field effect transistor. In some embodiments, the field effect transistor can include an enhancement mode field effect transistor, a P-channel field effect transistor or an N-channel enhancement mode field effect transistor, etc. In some embodiments, the enhancement mode field effect transistor can include a P-channel enhancement mode field effect transistor or an N-channel enhancement mode field effect transistor, etc.

[0060] In some embodiments, the first switching device 11, such as switching device Q1, switching device Q2 and switching device Q3, can be turned on by inputting low level at the control end Link, and turned off by inputting high level. In some embodiments, the first switching device 11, such as switching device Q1, switching device Q2 and switching device Q3, can be turned on by inputting high level at the control end Link, and turned off by inputting low level.

[0061] Please refer toFigure 4 , Figure 4 For Figure 3 Figure 1 shows a partial circuit schematic diagram of the atomization circuit 101 in the embodiment. The switch assembly 10 can further include a pull-up resistor R1 and a second switch device Q4, one end of the second switch device Q4 is electrically connected to the control end Link of the at least two first switch devices 11 and one end of the pull-up resistor R1, the other end is grounded, and the control end PWM is electrically connected to the control module 30, the other end of the pull-up resistor R1 is electrically connected to one end of the at least two first switch devices 11, and the other end of the at least two first switch devices 11 is electrically connected to the energy conversion device 20.

[0062] The control end PWM can receive a control signal such as a pulse width modulation (PWM) signal output by the control module 50 to realize the control of the second switch device Q4 by the control module 50. In some embodiments, the control module 50 outputs a control signal such as a pulse width modulation signal to the first switch device 11 to realize the control of the first switch device 11, and the control of the first switch device 11 is realized by the second switch device Q4. Of course, in other embodiments, the control module 50 can also realize the control of the first switch device 11 by other means based on the control signal such as the pulse width modulation signal, and is not limited to the embodiments listed here.

[0063] The arrangement of the second switch device Q4 can realize the simultaneous conduction of the at least two first switch devices 11 in the switch assembly 10, and also realize the simultaneous disconnection of the at least two first switch devices 11, thereby improving the intelligence. In some scenarios, one end of the second switch device Q4 is electrically connected to the control end Link of the switch device Q1, the switch device Q2 and the switch device Q3.

[0064] In some embodiments, the arrangement of the pull-up resistor R1 can be determined according to the type of the first switch device 11. Since the first switch device 11 can be turned on at a low level, passing through the pull-up resistor R1 can make the control end Link of the switch device Q1, the switch device Q2 and the switch device Q3 be pulled up to a high level without other driving to ensure the stability and reliability of the control signal. Of course, in some embodiments, the pull-up resistor R1 can be omitted, and can be replaced by a pull-down resistor or other electronic components or other circuits. Based on this, the circuit connection between the two ends of the second switch device Q4 can also be arranged according to the scheme described in the art, but does not affect the function of the second switch device Q4 to realize the simultaneous conduction and simultaneous disconnection of the at least two first switch devices 11.

[0065] In some embodiments, the second switching device Q4 can be a current-limiting switch, a triode, a general electrically-controlled switch or a relay switch, etc. with the function of controlling the on-off of the circuit. Specifically, those skilled in the art can select the type according to the needs. In some scenarios, the second switching device Q4 can be a triode. In some scenarios, the second switching device Q4 can be a digital triode.

[0066] In some embodiments, the second switching device Q4 is turned on when a high level is input to the control end, and is turned off when a low level is input. In some embodiments, the second switching device Q4 is turned on when a low level is input to the control end, and is turned off when a high level is input.

[0067] In some embodiments, the control module 30 can be electrically connected to the control end PWM, thereby controlling the on-off of the second switching device Q4. In some embodiments, the control module 30 can output pulse width modulation to the control end PWM, thereby controlling the second switching device Q4.

[0068] Please refer to Figure 5 , Figure 5 for Figure 1 the frame diagram of the atomization circuit 101 in some embodiments. The atomization circuit 101 can further include a sensor 40, which can be used to sense whether the energy conversion piece 20 needs to work in the atomization mode. In some embodiments, the sensor 40 can be a key, a touch screen, or a device capable of detecting gas pressure or airflow, and of course can be other.

[0069] In some embodiments, the sensor 40 can be directly electrically connected to the control end Link of the first switching device 11, such as the switching device Q1, the switching device Q2 and the switching device Q3, to control the first switching device 11.

[0070] In some embodiments, the sensor 40 can be directly electrically connected to the control end PWM of the second switching device Q4, to control the first switching device 11 through the second switching device Q4.

[0071] In some embodiments, the sensor 40 can be directly electrically connected to the control module 30, to control the first switching device 11 through the control module 30.

[0072] In some embodiments, the sensor 40 can be a pressure sensor. When the pressure in the atomization area of the electronic atomizer 100 decreases, a change signal can be generated. The switching assembly 10, such as at least two first switching devices 11, is turned on in response to the change signal, so that the energy conversion piece 20 works in the atomization mode and atomizes the aerosol generating substrate.

[0073] In some embodiments, the sensor 40 may be an airflow sensor that can generate a change signal when it senses airflow in the atomization area of ​​the electronic atomizer 100. The switching assembly 10, for example, at least two first switching devices 11, is turned on in response to the change signal, so that the energy conversion unit 20 operates in atomization mode and atomizes the aerosol generation matrix.

[0074] In some embodiments, the sensor 40 may be electrically connected to the control module 30, so that the control module 30 may receive changing signals and control the switching assembly 10, such as at least two first switching devices 11, so that the energy conversion element 20 operates in atomization mode and atomizes the aerosol generating matrix.

[0075] Please see Figure 6 , Figure 6 for Figure 1 The illustrated embodiment shows a schematic diagram of the atomizing circuit 101 in some embodiments. The atomizing circuit 101 may further include a voltage feedback circuit 50, which can be used to provide feedback on the voltage across the energy conversion element 20 to determine the operating state of the energy conversion element 20. In some embodiments, the voltage feedback circuit 50 may have an input terminal and a feedback terminal, with the input terminal of the voltage feedback circuit 50 electrically connected between the switching assembly 10 and the energy conversion element 20. In some embodiments, the feedback terminal of the voltage feedback circuit 50 may be directly electrically connected to the control module 30, so that the control module 30 can better control the energy conversion element 20.

[0076] Please see Figure 7 , Figure 7 for Figure 1 The illustrated embodiment shows a partial circuit diagram of the atomizing circuit 101 in some embodiments. The voltage feedback circuit 50 may include a first voltage divider resistor R2 and a second voltage divider resistor R3. One end of the first voltage divider resistor R2 is electrically connected between the switching assembly 10 and the energy conversion component 20, and the other end is electrically connected to the feedback terminal ADC_Vout. One end of the second voltage divider resistor R3 is grounded, and the other end is electrically connected to the feedback terminal ADC_Vout. In some embodiments, the feedback terminal ADC_Vout may be electrically connected to the control module 30.

[0077] Please see Figure 8 , Figure 8 for Figure 1The atomization circuit 101 in the embodiment is a schematic diagram of a framework in some embodiments. The atomization circuit 101 can further include a temperature control resistor 60, which is connected in parallel with the switch assembly 10 to be connected in series with the energy conversion component 20 to form a loop with at least part of the atomization circuit 101. The temperature control resistor 60 can be connected in series with the energy conversion component 20 when the switch assembly 10 is disconnected, so as to adjust the energy conversion component 20 to work in a preheating mode. In some embodiments, the energy conversion component 20 can preheat the aerosol generating substrate in the preheating mode, so as to reduce the difficulty of atomization in the atomization mode. In some embodiments, the switch assembly 10 can short-circuit the temperature control resistor 60 at any time, so as to adjust the electronic atomizer 100 to switch between the atomization mode and the preheating mode.

[0078] Referring to Figure 9 , Figure 9 for Figure 1 The atomization circuit 101 in the embodiment is a partial circuit schematic diagram in some embodiments. The temperature control resistor 60 can include a resistor R4. One end of the resistor R4 can be electrically connected to the high-level end Vbat of the power supply, and the other end can be electrically connected to the end point Vout. In this way, the resistor R4 is arranged in parallel with the switch assembly 10, such as the switch device Q1, the switch device Q2, and the switch device Q3.

[0079] Referring to Figure 10 , Figure 10 for Figure 1 The atomization circuit 101 in the embodiment is a partial circuit schematic diagram in some embodiments. The atomization circuit 101 can include the switch assembly 10, the energy conversion component 20, the voltage feedback circuit 50, and the temperature control resistor 60.

[0080] The switch assembly 10 can include the switch device Q1, the switch device Q2, the switch device Q3, the second switch device Q4, and the pull-up resistor R1. One end of the switch device Q1, the switch device Q2, and the switch device Q3 can be electrically connected to the high-level end Vbat of the power supply, and the other end can be electrically connected to the end point Vout. The end point Vout is electrically connected to one end of the energy conversion component 20, and the other end of the energy conversion component 20 is electrically connected to the ground of the power supply.

[0081] The switch device Q1, the switch device Q2, and the switch device Q3 can have a control end Link. One end of the second switch device Q4 is electrically connected to the control end Link of the switch device Q1, the switch device Q2, and the switch device Q3, one end of the pull-up resistor R1, and the ground. The control end PWM is electrically connected to the control module 30. The other end of the pull-up resistor R1 is electrically connected to one end of the switch device Q1, the switch device Q2, and the switch device Q3.

[0082] The voltage feedback circuit 50 can include a first voltage dividing resistor R2 and a second voltage dividing resistor R3. One end of the first voltage dividing resistor R2 is electrically connected between the switching assembly 10 and the energy conversion component 20, and the other end is electrically connected to the feedback end ADC_Vout. One end of the second voltage dividing resistor R3 is grounded, and the other end is electrically connected to the feedback end ADC_Vout. The feedback end ADC_Vout can be electrically connected to the control module 30.

[0083] The temperature control resistor 60 can include a resistor R4. One end of the resistor R4 can be electrically connected to the high voltage end Vbat of the power supply, and the other end can be electrically connected to the end point Vout. In this way, the resistor R4 is arranged in parallel with the switching assembly 10, such as the switching device Q1, the switching device Q2, and the switching device Q3.

[0084] When the control module 30 outputs a high level to the control end PWM, the second switching device Q4 is turned on to ground, so that the switching device Q1, the switching device Q2, and the switching device Q3 are turned on.

[0085] When the control module 30 outputs a low level to the control end PWM, or the control end PWM is in a suspended state, the second switching device Q4 is turned off, so that the switching device Q1, the switching device Q2, and the switching device Q3 are turned off.

[0086] In some embodiments, the resistor R4 can be used as a reference resistance value of the switching device Q1, the switching device Q2, and the switching device Q3. In this way, the resistor R4 can not be used as the temperature control resistor 60.

[0087] In the several embodiments provided in the present application, it should be understood that the disclosed methods and devices can be implemented in other ways. For example, the device embodiments described above are merely illustrative, and the division of the modules or units is merely a logical function division. In actual implementation, another division manner can be adopted, for example, at least two units or components can be combined or integrated into another system, or some features can be ignored or not executed.

[0088] The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, i.e., can be located in one place or distributed on at least two network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the embodiments.

[0089] In addition, each functional unit in each embodiment of the present application can be integrated into one processing unit, or each unit can be physically present separately, or two or more units can be integrated into one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit.

[0090] The above merely provides the implementation of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which is made according to the content of the present application and the accompanying drawings, is also included in the patent protection scope of the present application.

Claims

1. An electronic atomizer, characterized in that, The electronic atomizer comprises an atomization circuit, the atomization circuit comprises a switch assembly and an energy conversion piece in series, the switch assembly is used for controlling the working mode of the energy conversion piece, and the energy conversion piece is arranged to perform atomization treatment on the aerosol generating substrate in an atomization mode. The switch assembly comprises at least two first switch devices in parallel, and the at least two first switch devices are arranged to adjust the voltage across the switch assembly by conduction, so that the voltage across the energy conversion piece is greater than or equal to a target voltage in the atomization mode.

2. The electronic atomizer of claim 1, wherein, The atomization circuit further comprises a control module electrically connected to the control end of the switch assembly, and used for controlling the at least two first switch devices to conduct simultaneously.

3. The electronic atomizer of claim 2, wherein, The switch assembly further comprises a pull-up resistor and a second switch device, one end of the second switch device is electrically connected to the control end of the first switch device and one end of the pull-up resistor, the other end of the second switch device is grounded, the control end of the second switch device is electrically connected to the control module, the other end of the pull-up resistor is electrically connected to one end of the first switch device, and the other end of the first switch device is electrically connected to the energy conversion piece.

4. The electronic atomizer of claim 3, wherein, The first switch device is arranged to conduct at the control end inputting a low level, and the second switch device is arranged to conduct at the control end inputting a high level.

5. The electronic atomizer of claim 3, wherein, The first switch device is a P-channel field effect transistor or a P-channel enhancement mode field effect transistor, and the second switch device is a digital triode.

6. The electronic atomizer of any one of claims 1-5, wherein, The energy conversion piece is arranged to preheat the aerosol generating substrate in a preheating mode, the atomization circuit further comprises a temperature control resistor, the temperature control resistor is connected in parallel with the switch assembly and in series with the energy conversion piece, and the temperature control resistor is arranged to adjust the energy conversion piece to work in the preheating mode when the switch assembly is disconnected.

7. The electronic atomizer of any one of claims 1-5, wherein, The atomization circuit further comprises a voltage feedback circuit, the voltage feedback circuit has an input end and a feedback end, and the input end of the voltage feedback circuit is electrically connected between the switch assembly and the energy conversion piece.

8. The electronic atomizer of claim 7, wherein, The voltage feedback circuit comprises a first voltage dividing resistor and a second voltage dividing resistor, one end of the first voltage dividing resistor is electrically connected between the switch assembly and the energy conversion piece, and the other end is electrically connected to the feedback end, one end of the second voltage dividing resistor is grounded, and the other end is electrically connected to the feedback end.

9. The electronic atomizer of any one of claims 1-5, wherein, The atomization circuit further comprises a gas sensor, the gas sensor is used for detecting gas pressure or airflow and forming a change signal, and the at least two first switch devices conduct in response to the change signal.

10. The electronic atomizer of claim 1, wherein, The energy conversion piece comprises a heating resistor, or the energy conversion piece is arranged to perform atomization treatment on the aerosol generating substrate by using ultrasonic waves.

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